What does this name mean in the following form

Hi guys,
Can anyone please tell me abt the name field and also other field onSubmit does in the following form
<form method="post" action="IAFDispatcher" name="mainForm2" onSubmit="return checkCustomer()">
Thanks in advance.

Hi guys,
Can anyone please tell me abt the name
abt the name field and also other field onSubmit does
in the following form
<form method="post" action="IAFDispatcher"
name="mainForm2" onSubmit="return checkCustomer()">
Thanks in advance.The name field is used for identifying this form on the client side, such as through javascript DOM operations (like document.forms.mainForm2 would locate the form in question).
The onSubmit attribute defines a javascript function that will occur when the 'onsubmit' event of the form is given. The 'onsubmit' event occurs when a submit button is pushed or when a javascript .submit() method is called on the form. The function called my the onsubmit event should return a boolean value: "true" means that submission should continue, and "false" means that the form should not be submitted.
http://www.w3schools.com/tags/tag_form.asp
http://www.w3schools.com/tags/eventattributes.asp

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